Iran is urging the United Nations to condemn Wednesday’s assassination of another Iranian nuclear scientist. Iran described the attack as “cruel, inhumane and criminal acts of terrorism.” Mostafa Ahmadi Roshan became the fifth Iranian nuclear scientist assassinated in recent years. Iran blamed Israel and the United States for the attack. Pentagon spokesperson George Little denied U.S. involvement.

George Little: “The United States played no role whatsoever in the killing of this scientist. And as to the broader question of tensions, we have been very clear that we seek to lower the temperature on tensions with Iran, and we think that things have calmed down a bit in recent days.”